Messrs. T. D. A. Cockerell and W. Porter on Bees. 413 



creamy white, which is narrow in the middle, but abruptly- 

 enlarged, forming quadrate patches, at the sides ; the lateral 

 creamy-white face-marks are not far from equilateral triangles ; 

 no supraclypeal or dog-ear marks ; labrum with a transverse 

 white patch ; mandibles dark ; thorax quite hairy ; meso- 

 thorax shiny, but strongly punctured except a posterior 

 smooth area ; base of metathorax smooth and sliining, with a 

 large median pit, made double by a longitudinal transverse 

 ridge ; tegulae dark brown in front, pale brown behind ; wings 

 perfectly clear, nervures and stigma dark brown, stigma very 

 little developed; marginal cell obliquely truncate; second 

 submarginal narrowed about one half to marginal, and re- 

 ceiving the recurrent nervures at about the end of the tirst and 

 beginning of the last fifths ; legs black, even to the tarsi, with 

 pale pubescence; middle femora curiously flattened and 

 broadened, the lower knife-like edge having a very short 

 brush of orange-fulvous hairs ; basal joint of middle tarsi also 

 flat and broad ; abdomen strongly but not densely punctured, 

 "with the usual thin hair-bands ; liair at apex pale. 



(^ • — About 7 miilim. long. Face more hairy; white 

 markings more conspicuous ; clyj^eus creamy white, with a 

 black mark on each side of its hind margin ; lateral face- 

 marks rather more produced along the orbital margin than in 

 the female; basal part of mandibles mostly white; anterior 

 knees and anterior tibiaj in front yellowish ; spurs whitish ; 

 tarsi sordid whitish, the small joints brown, quite dark on the 

 middle and hind tarsi. 



Hah. Las Vegas, N. M., Aug. 9, several at flowers of 

 Verbena stricta ( W. Porter) . 



CalUopsi's chloropsj sp. n., Ckll. 



c?. — Length 5^-6^ miilim. 



Black with grey and white pubescence. Head transversely 

 suboval ; eyes prominent, in life yellowish green ; face and 

 cheeks with fairly abundant white hair, not dense enough to 

 hide the surface; face-markings pale yellow, including the 

 clypeus, lateral marks, supraclypeal mark, dog-ear marks, 

 labrum, and mandibles except their reddish tips ; the face 

 would be all yellow below the level of the antenuDe, except 

 the rather obscure clypeal dots, but for the fact that below 

 each dog-ear mark is a small triangle of black, bounded by 

 the clypeus, lateral mark, and dog-ear mark ; lateral marks 

 rapidly narrowing I'rom the upper margin of the dog-ear 

 marks to an acute point on the orbital margin less than the 

 length of the scape jibove the level of the antennal sockets ; 

 Ann. dc Mag. N. Hht. Ser. 7. Vol. iv. 28 



